Neuropediatrics 2017; 48(06): 420-425
DOI: 10.1055/s-0037-1603778
Original Article
Georg Thieme Verlag KG Stuttgart · New York

Jumping Mechanography as a Complementary Testing Tool for Motor Function in Children with Hereditary Motor and Sensory Neuropathy

Katharina Vill1, *, Lena Ille1, *, Astrid Blaschek1, Rainer Rawer2, Mirjam N. Landgraf1, Lucia Gerstl1, Sebastian A. Schroeder1, Wolfgang Müller-Felber1
  • 1Department of Pediatric Neurology and Developmental Medicine, Dr. v. Hauner Children's Hospital, Ludwig-Maximilians-University, Munich, Germany
  • 2Novotec Medical GmbH, Pforzheim, Germany
Further Information

Publication History

23 March 2017

03 May 2017

Publication Date:
22 June 2017 (eFirst)


Objective This study aims to compare mechanography, measuring force in jumping, and rising, with the 6-minute walk test (6MWT) and time function tests in pediatric patients with hereditary motor and sensory neuropathies.

Methods A cohort of 23 patients performed the 6MWT and time function tests (time to run 10 m, to rise from a supine position, and to climb four stairs), as well as the chair rising test (CRT) and the single two-legged jump (S2LJ) on a mechanography ground reaction force platform. Results were correlated calculating linear regression.

Results Correlation revealed high or moderate correlation between mechanography and the 6MWT and the time function tests: S2LJ/6MWT = 0.64; CRT/6MWT = 0.52; S2LJ/rising from floor = 0.63; CRT/rising from floor = 0.67; S2LJ/10 m run = 0.74; CRT/10 m run = 0.66; S2LJ/climb four stairs = 0.56; CRT/climb four stairs = 0.47.

Conclusion Jumping mechanography is a good additional tool for the assessment of pediatric patients with Charcot-Marie-Tooth disease and might be used for primary outcome measures. It was not feasible in more advanced stages of the disease. In less disabled children, the S2LJ, which quantifies force generated by proximal and distal muscles, might be superior to other tests.

* The authors Katharina Vill and Lena Ille contributed equally to this article.

Supplementary Material